Maxima: Identifying powers of x1, x2, ..., xn in sum of expressions.
Subject: Maxima: Identifying powers of x1, x2, ..., xn in sum of expressions.
From: Richard Fateman
Date: Mon, 15 Jun 2009 07:45:13 -0700
Constantine Frangos wrote:
> Hi all,
>
> Any assistance with the following would be appreciated:
>
> I have a sum of expressions: s = t1 + t2 + .... + tm.
>
> If any term ti contains one or more of n symbolic variables, each raised to
> the power 2 or higher, that is, x1^p, x2^p, ...., xn^p, p>=2, then that term
> ti should be removed from the sum.
>
> Its not clear how to implement the above in Maxima. I am currently using
> Maxima version 5.12.
>
> Thanks very much.
>
> Regards,
>
> C. Frangos.
>
>
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read about ratweight and ratwtlvl.
It will do exactly what you want.